Abstract It has recently been contemplated to use spherical caps as outer space energy concentrators. Adding toroidal segment to a cap gives a component known as torisphere which offers the necessary, space-relevant reinforcement of cap's rim. The current study addresses a range of issues related to the above shell. Buckling, affected by shape imperfections, being one of them, is studied numerically. Possible forms of reinforcement by stringers and/or rings are also discussed. Analysed domes can be impacted by debris, creating dimples, leading in turn to the loss of buckling strength. Results of this aspect, together with possible repair scenario are provided.

中文翻译：

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局部和整体形状缺陷对外部加压圆顶屈曲的影响

摘要 最近已经考虑使用球冠作为外层空间能量集中器。将环形段添加到瓶盖上可提供称为圆环球的组件，它为瓶盖边缘提供必要的、与空间相关的加固。当前的研究解决了与上述 shell 相关的一系列问题。受形状缺陷影响的屈曲是其中之一，进行了数值研究。还讨论了由纵梁和/或环加固的可能形式。分析的圆顶可能会受到碎片的影响，产生凹痕，进而导致屈曲强度的损失。提供了这方面的结果以及可能的维修方案。